CASIO RING WATCH commemorating the 50th anniversary of Casio Watch CRW-001-1JR This is a domestic genuine product, brand new and unused. This is a ring watch commemorating the 50th anniversary of Casio's watch business. By developing a small module and adopting advanced metal molding technology, it combines practicality and playfulness. The complex design of Casio watches is finely reproduced in a full-metal design the size of a ring. Furthermore, airtightness is ensured by glass bonding technology. While the battery can be replaced, it achieves water resistance for everyday life. The ring size is size 22. Size adjustment spacers for size 19 (inner diameter 19mm) and size 16 (inner diameter 18mm) are included. It is downsized to about 1/10 compared to a general wristwatch module. By combining it with a small button battery, a digital watch with 3 buttons is realized in a ring size. Furthermore, it is also equipped with a 7-segment display LCD. It displays hours, minutes, and seconds, as well as the date, dual time, stopwatch, and more. When the set time is reached, it has an emotional flashing light function that gently blinks the light on your hand. The special package also includes an original drawstring bag. The store name and date are attached to the instruction manual. Free shipping Instant purchase available Thank you.